Scar City (1998)

After a young cop gets involved in his third shooting, he is recruited into a special police unit. He quickly learns that the unit is an assassination corps for hoodlums and they don't care who gets in the way. Saving the life of a child gets him a beating by the unit, which they call an initiation. When they raid a mobster's home and start killing hoods and call girls who just happens to be there, he draws a line when he finds one hiding in a closet. He then goes on the run with her with gangsters and the cops both in pursuit.